1 /* 2 * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting 3 * Copyright (c) 2004-2005 Atheros Communications, Inc. 4 * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com> 5 * Copyright (c) 2009 Bob Copeland <me@bobcopeland.com> 6 * 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer, 14 * without modification. 15 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 16 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 17 * redistribution must be conditioned upon including a substantially 18 * similar Disclaimer requirement for further binary redistribution. 19 * 3. Neither the names of the above-listed copyright holders nor the names 20 * of any contributors may be used to endorse or promote products derived 21 * from this software without specific prior written permission. 22 * 23 * Alternatively, this software may be distributed under the terms of the 24 * GNU General Public License ("GPL") version 2 as published by the Free 25 * Software Foundation. 26 * 27 * NO WARRANTY 28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 30 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 31 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 32 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 33 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 36 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 38 * THE POSSIBILITY OF SUCH DAMAGES. 39 * 40 */ 41 42 #include <linux/pci.h> 43 #include "ath5k.h" 44 45 #define ATH_SDEVICE(subv, subd) \ 46 .vendor = PCI_ANY_ID, .device = PCI_ANY_ID, \ 47 .subvendor = (subv), .subdevice = (subd) 48 49 #define ATH_LED(pin, polarity) .driver_data = (((pin) << 8) | (polarity)) 50 #define ATH_PIN(data) ((data) >> 8) 51 #define ATH_POLARITY(data) ((data) & 0xff) 52 53 /* Devices we match on for LED config info (typically laptops) */ 54 static DEFINE_PCI_DEVICE_TABLE(ath5k_led_devices) = { 55 /* AR5211 */ 56 { PCI_VDEVICE(ATHEROS, PCI_DEVICE_ID_ATHEROS_AR5211), ATH_LED(0, 0) }, 57 /* HP Compaq nc6xx, nc4000, nx6000 */ 58 { ATH_SDEVICE(PCI_VENDOR_ID_COMPAQ, PCI_ANY_ID), ATH_LED(1, 1) }, 59 /* Acer Aspire One A150 (maximlevitsky@gmail.com) */ 60 { ATH_SDEVICE(PCI_VENDOR_ID_FOXCONN, 0xe008), ATH_LED(3, 0) }, 61 /* Acer Aspire One AO531h AO751h (keng-yu.lin@canonical.com) */ 62 { ATH_SDEVICE(PCI_VENDOR_ID_FOXCONN, 0xe00d), ATH_LED(3, 0) }, 63 /* Acer Ferrari 5000 (russ.dill@gmail.com) */ 64 { ATH_SDEVICE(PCI_VENDOR_ID_AMBIT, 0x0422), ATH_LED(1, 1) }, 65 /* E-machines E510 (tuliom@gmail.com) */ 66 { ATH_SDEVICE(PCI_VENDOR_ID_AMBIT, 0x0428), ATH_LED(3, 0) }, 67 /* BenQ Joybook R55v (nowymarluk@wp.pl) */ 68 { ATH_SDEVICE(PCI_VENDOR_ID_QMI, 0x0100), ATH_LED(1, 0) }, 69 /* Acer Extensa 5620z (nekoreeve@gmail.com) */ 70 { ATH_SDEVICE(PCI_VENDOR_ID_QMI, 0x0105), ATH_LED(3, 0) }, 71 /* Fukato Datacask Jupiter 1014a (mrb74@gmx.at) */ 72 { ATH_SDEVICE(PCI_VENDOR_ID_AZWAVE, 0x1026), ATH_LED(3, 0) }, 73 /* IBM ThinkPad AR5BXB6 (legovini@spiro.fisica.unipd.it) */ 74 { ATH_SDEVICE(PCI_VENDOR_ID_IBM, 0x058a), ATH_LED(1, 0) }, 75 /* HP Compaq CQ60-206US (ddreggors@jumptv.com) */ 76 { ATH_SDEVICE(PCI_VENDOR_ID_HP, 0x0137a), ATH_LED(3, 1) }, 77 /* HP Compaq C700 (nitrousnrg@gmail.com) */ 78 { ATH_SDEVICE(PCI_VENDOR_ID_HP, 0x0137b), ATH_LED(3, 1) }, 79 /* LiteOn AR5BXB63 (magooz@salug.it) */ 80 { ATH_SDEVICE(PCI_VENDOR_ID_ATHEROS, 0x3067), ATH_LED(3, 0) }, 81 /* IBM-specific AR5212 (all others) */ 82 { PCI_VDEVICE(ATHEROS, PCI_DEVICE_ID_ATHEROS_AR5212_IBM), ATH_LED(0, 0) }, 83 /* Dell Vostro A860 (shahar@shahar-or.co.il) */ 84 { ATH_SDEVICE(PCI_VENDOR_ID_QMI, 0x0112), ATH_LED(3, 0) }, 85 { } 86 }; 87 88 void ath5k_led_enable(struct ath5k_hw *ah) 89 { 90 if (test_bit(ATH_STAT_LEDSOFT, ah->status)) { 91 ath5k_hw_set_gpio_output(ah, ah->led_pin); 92 ath5k_led_off(ah); 93 } 94 } 95 96 static void ath5k_led_on(struct ath5k_hw *ah) 97 { 98 if (!test_bit(ATH_STAT_LEDSOFT, ah->status)) 99 return; 100 ath5k_hw_set_gpio(ah, ah->led_pin, ah->led_on); 101 } 102 103 void ath5k_led_off(struct ath5k_hw *ah) 104 { 105 if (!test_bit(ATH_STAT_LEDSOFT, ah->status)) 106 return; 107 ath5k_hw_set_gpio(ah, ah->led_pin, !ah->led_on); 108 } 109 110 static void 111 ath5k_led_brightness_set(struct led_classdev *led_dev, 112 enum led_brightness brightness) 113 { 114 struct ath5k_led *led = container_of(led_dev, struct ath5k_led, 115 led_dev); 116 117 if (brightness == LED_OFF) 118 ath5k_led_off(led->ah); 119 else 120 ath5k_led_on(led->ah); 121 } 122 123 static int 124 ath5k_register_led(struct ath5k_hw *ah, struct ath5k_led *led, 125 const char *name, char *trigger) 126 { 127 int err; 128 129 led->ah = ah; 130 strncpy(led->name, name, sizeof(led->name)); 131 led->led_dev.name = led->name; 132 led->led_dev.default_trigger = trigger; 133 led->led_dev.brightness_set = ath5k_led_brightness_set; 134 135 err = led_classdev_register(ah->dev, &led->led_dev); 136 if (err) { 137 ATH5K_WARN(ah, "could not register LED %s\n", name); 138 led->ah = NULL; 139 } 140 return err; 141 } 142 143 static void 144 ath5k_unregister_led(struct ath5k_led *led) 145 { 146 if (!led->ah) 147 return; 148 led_classdev_unregister(&led->led_dev); 149 ath5k_led_off(led->ah); 150 led->ah = NULL; 151 } 152 153 void ath5k_unregister_leds(struct ath5k_hw *ah) 154 { 155 ath5k_unregister_led(&ah->rx_led); 156 ath5k_unregister_led(&ah->tx_led); 157 } 158 159 int __devinit ath5k_init_leds(struct ath5k_hw *ah) 160 { 161 int ret = 0; 162 struct ieee80211_hw *hw = ah->hw; 163 #ifndef CONFIG_ATHEROS_AR231X 164 struct pci_dev *pdev = ah->pdev; 165 #endif 166 char name[ATH5K_LED_MAX_NAME_LEN + 1]; 167 const struct pci_device_id *match; 168 169 if (!ah->pdev) 170 return 0; 171 172 #ifdef CONFIG_ATHEROS_AR231X 173 match = NULL; 174 #else 175 match = pci_match_id(&ath5k_led_devices[0], pdev); 176 #endif 177 if (match) { 178 __set_bit(ATH_STAT_LEDSOFT, ah->status); 179 ah->led_pin = ATH_PIN(match->driver_data); 180 ah->led_on = ATH_POLARITY(match->driver_data); 181 } 182 183 if (!test_bit(ATH_STAT_LEDSOFT, ah->status)) 184 goto out; 185 186 ath5k_led_enable(ah); 187 188 snprintf(name, sizeof(name), "ath5k-%s::rx", wiphy_name(hw->wiphy)); 189 ret = ath5k_register_led(ah, &ah->rx_led, name, 190 ieee80211_get_rx_led_name(hw)); 191 if (ret) 192 goto out; 193 194 snprintf(name, sizeof(name), "ath5k-%s::tx", wiphy_name(hw->wiphy)); 195 ret = ath5k_register_led(ah, &ah->tx_led, name, 196 ieee80211_get_tx_led_name(hw)); 197 out: 198 return ret; 199 } 200 201